Improvement in hinges



F. TOEDT.

HINGE.

Patented Nov.vz3,1a75.

Nn.r17c,s14.

UNITED STATES PATENT OFFICE.v

FRIEDERICH TOEDT, OF NEW YORK, NrY.

IMPROVEMENT IN HINGES.

Specification forming part of Letters Patent No. 170,314, dated November23, 1875; application filed September 25, 1875.

To all whom it may concern l Be it known that I, FRIEDERICH TODT, of thecity, county, and State of New York, have invented a new and Im provedButt-Hinge, of which the following is a specification:

In the accompanying drawing, Figure l represents a side View, Fig. 2 anend view, of my improved butt-hinge, and Figs. 3 and 4 the detachedparts or wings of the same.

Similar letters of reference indicate corresponding parts.

My invention relates to an improved butthin ge for doors of all kinds,by which the same are raised when being opened, and closed by their ownweight, dispensing thereby with the threshold, which admits the moreconvenient laying of carpets and improves the appearance ot' the rooms.

The invention consists of a butt-hinge made ot' a wing-plate with aspindle and fixed inclined washer, on which the correspondinglyinclinedsleeve yend of the other wing-plate slides, raising thereby the door.

In the drawing, A represents the Wing-plates of a butt-hinge for doors,of which the sleeve A of the lower plate attached to the doorframe isprovided with a stationary spindle, B, to which an inclined Washer, C,of hard metal is rigidly fastened. The washer C rests on thesimilarly-inclined sleeve A', and forms the bearing for thecorrespondingly-inclined sleeve end ot' the upper washer attached to thedoor.

The opening of the door produces the raising of the door to the heightor rise of the inclination of the washer, so that the bottom edge of thedoor clears the carpet without frictionand resistance by the same.

The door closes automatically by means of the inclined washer, and maybe kept in open position by a suitable spring-catch, or equivalentdevice.

The advantage of the hinge is obvious, as it allows the laying ofcarpet-s from one room to another on an even surface withoutnecessitating sills or thresholds as at present.

Havingthus described my invention, I claim specied. s

FRIEDERIGH TOEDT. Witnesses: T. B. MosHER, ALEX. F. RoEEETs.

